Step 6: Draw a long, curved line to the right of the first diagonal line to complete the guide of the first pectoral fin. Sketch lightly at first. The resulting shape of the guide should be similar to a long letter D. On the left side, draw a long, diagonal line to complete the guide for the flying fish's other pectoral fin.
Step 7: Under the second circle, draw a tilted, V-shaped line as a guide for the flying fish's first pelvic fin. To the left, draw a thinner, V-shaped line that tilts the opposite way for the fish's other pelvic fin.
Step 8: On top of the body, to the right of the pectoral fins, draw an angled line as a guide for the dorsal fin. Under the body, draw a more square-like angled line as a guide for the anal fin.
That's it for the guides! From this point on, press harder with your pencil for a more defined drawing.
Step 9: Inside the first circle, near the left side, draw a smaller circle for the fish's eye. Inside the eye, draw an even smaller circle for the pupil and a tiny circle off to the side for a highlight. Shade the pupil but don't overlap the highlight circle. Draw a few short lines around the pupil for extra detail inside the flying fish's eye.